http://android-developers.blogspot.com/2010/09/one-screen-turn-deserves-another.html
On Wed, Jun 29, 2011 at 10:22 AM, Mike D <[email protected]> wrote: > Hi guys, > > I've been playing around with orientation (especially in relation to > the real world so finding north is very useful) and started with the > google api example. > > While investigating how to change that so it worked while the phone > was in landscape I found out that I was using depricated components. > So now I'm using the acceloromiter and the magnetic field to find the > orientation which I found in a mixture of examples on the web. > > This again works great while in portrain but landscape gives weird > answers? > > I've done some experiments with looking at the different between > landscape and portrait but can't seem to find out what's going on and > how to correct the app to allow me to switch between portrain and > landscape on the fly. > > I don't think it's quite as simple and minusing 90 degrees but I'm > willing to be wrong. > > Here's my SensorListener onSensorChanged > > int type = event.sensor.getType(); > float[] data; > if (type == Sensor.TYPE_ACCELEROMETER) { > data = mGData; > } else if (type == Sensor.TYPE_MAGNETIC_FIELD) { > data = mMData; > } > > for (int i=0 ; i<3 ; i++){ > data[i] = event.values[i]; > } > > SensorManager.getRotationMatrix(mR, mI, mGData, > mMData); > > SensorManager.getOrientation(mR, mOrientation); > float incl = SensorManager.getInclination(mI); > String endl = System.getProperty("line.separator"); > if (mCount++ > 50) { > final float rad2deg = (float)(180.0f/Math.PI); > mCount = 0; > txZ.setText("Azimuth: " + > (int)(mOrientation[0]*rad2deg) + " > degrees" + endl + > "Pitch: " + > (int)(mOrientation[1]*rad2deg) + " degrees" + endl + > "Roll: " + > (int)(mOrientation[2]*rad2deg) + " degrees" + endl + > "incl: "+ (int)(incl*rad2deg)); > } > > Many Thanks > Michael > > -- > You received this message because you are subscribed to the Google > Groups "Android Developers" group. > To post to this group, send email to [email protected] > To unsubscribe from this group, send email to > [email protected] > For more options, visit this group at > http://groups.google.com/group/android-developers?hl=en > -- Dianne Hackborn Android framework engineer [email protected] Note: please don't send private questions to me, as I don't have time to provide private support, and so won't reply to such e-mails. All such questions should be posted on public forums, where I and others can see and answer them. -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
